Stadium: Court 6 Round: 25 Ground: Hardcourt indoor
| ITF M15 St Petersburg | 2021/04/12 07:00 | Timur Kiyamov v Victor Ernaelsteen | 6-2,6-2 |
| ITF M15 St Petersburg | 2021/04/11 08:05 | Timur Kiyamov v Iznaur Akhmaev | 6-1,6-0 |
| ITF M15 St Petersburg | 2021/04/05 08:30 | Maxim Ratniuk v Timur Kiyamov | 6-4,6-7,12-10 |
| ITF M15 St Petersburg | 2021/04/04 11:35 | Alexander Stepin v Timur Kiyamov | 4-6,3-6 |
| ITF M15 Kazan | 2021/03/10 10:00 | Yaraslav Shyla v Timur Kiyamov | 7-5,6-3 |
| ITF M15 Antalya | 2021/02/07 06:00 | Timur Kiyamov v Dragos Nicolae Madaras | 2-6,1-6 |
| ITF M15 Antalya | 2021/02/04 06:20 | Timur Kiyamov v Jacopo Berrettini | 3-6,6-4,5-7 |
| ITF M15 Antalya | 2021/02/03 06:30 | Vladimir Korolev v Timur Kiyamov | 2-6,6-4,11-9 |
| ITF M15 St Petersburg | 2021/04/12 07:00 | Sarp Agabigun v Dominik Recek | 6-4,6-2 |
| ITF M15 St Petersburg Qual | 2021/04/11 09:20 | Sarp Agabigun v Mert Alkaya | 6-4,6-3 |
| ITF M15 St Petersburg | 2021/04/09 08:00 | Ivan Nedelko v Sarp Agabigun | 6-1,6-4 |
| ITF M15 St Petersburg | 2021/04/08 10:45 | Sarp Agabigun v Alexey Zakharov | 6-2,6-4 |
| ITF M15 St Petersburg | 2021/04/07 11:15 | Sarp Agabigun v Aleksei Abazov | 6-0,6-0 |
| ITF M15 St Petersburg | 2021/04/05 06:55 | Sarp Agabigun v Igor Trunov | 6-0,6-2 |
| ITF M15 St Petersburg | 2021/04/04 09:50 | Sarp Agabigun v Klim Kozyrev | 6-3,6-0 |
| ITF M15 Antalya | 2021/03/16 07:00 | Sarp Agabigun v Edoardo Lavagno | 4-6,7-5,8-10 |